Gas-generating furnace.



W. C. LOUDON.

GAS GENERATING FURNACE.

APPHCAHON FILED SEPT.28. 1912.

1,145,39fie Patented July 6, 1915.

4 SHEETS-SHEET lw. c. LOUDON.

GAS GENERATING FURNACE.

APPLICATION FILED SEPT.28. I912. Y 435 .337 Patented July 6, 1915.

4 SHEETS-SHEET 2- l QWQM v w. c. 'LOUDQN. I GAS GENERATING F URNACE. APPLICATION FILED SEPT.28, IQI'Z.

Patented July 6, 1915.

4 SHEETS-SHEET 3- W. C. LOUDON, GAS GENERATiNG FURNACE. APPLICATION FILED SEPT.28,1912.

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Patented Jul 6,1915.

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WILLInMc. LOUDON, or s'r. LOUIS, MISSOURI.-

GAS-GEN ERATIN G FURNACE.

Specification of Letters Patent.

Patented-July c, 1915.

Application filed September 28, 1912. -Seria1 No. 722,981.

To all QCYLOTZZIL'Z may concern.- I lie it known that I, WVILLIAM C. LoUDoN, acItiZen of the United States, and resident of St. Louis, Missouri, have invented cer- '5 tain newan'd useful Improvements in Gas Generating Furnaces, of which the following is a specification.

This invention relates to improvements in gas generating furnaces constructed of the ,0 coal gas type and has for its object an air circulating mediumby which the air is primarily heated before'being mixed with the heat and gas directed from the furnace so as v to deliver around each gas retort a uniform .15 heat-and ameans for regulating the c1r culation so asto keep the heat around the retorts at an eventemperature, I A further object of my. invention is to construct a furnace which is commercially. 'termed a bench of nines and sultable passages arranged within the structure through which air is admitted from the bottom and is circulated in such manner as to bepriinarily heated before entering the combustioii chamber from which the. heat is directed' against all of the gas retorts.

Afurther object'is to-c onstruct a particular form ofpassage through whichthe air must circulate before entering the com- 'bustion' chamber. and said air while circulating' through these. passages is'-heated to a higher degree than is now accomplished by the .present form of gas furnaces and to obtain' a greater heating etliciency with a small amount of fuel.

Figure 1 isa cross sectional view taken on the line ll of Fig. 3. Fig. 2 is'a longitudinal sectional View taken on the-line 2-2 of F ig.. 1. Fig. 3 is a horizontal sec- .40 tion'al View taken on the line 33 of F ig. 1.

Fig- 4 is a detail vertical sectional view taken on the line H of Fig.3. Fig. 5 is 'a horizontal combination sectional view taken on the line 55 of Fig. 1. Figs. 6, 7,

a5 '8, and 9 are detail perspective views of several of tlretiles made use of in constructing my improved furnace and for forming the necessary passages. I In the construction of my invention I provide a gas generator composed of a pair of side Walls 10 and 11 connected together bv .an arch 12, a front wall 13 and a .rear

wall 14:. I

1 In thebody of-the generator is located a. suitable furnace provided with a'fire-box 15 in which islocated the usual grate bars 16 on which the fuel is located; the'upper portion of the fire-box or furnace is arched as lndicated by the numeral 17 and at inter- .vals along the top are located nostrils 18;

structure running rearwardly the depth of the furnace communicating with a cross port 20 and from thence the air passes forwardlv through the air passage 21 and isdischarged under the grate bars through the openings 'neath the grate bars, primarily heats the 22; this method of circulating the 'air besame to aproper degree so asnot to chill the fireand interrupt the proper combustion.

On each side of the furnace and built in i the. structure are flue tiles 23-formin'g suitable passages through. which the unused particles of combustion travel on their. way

out to thestack; the pcsition of these tiles is such as to provide air passages through which the air passes to be primarily heated' by the fiues before intermingling with the gases and products of combustion delivered from the furnace.

The structure on both sides of thefireboii or furnace being identical, the description-of one will suffice. The structure of the flue tiles and the air passages formed thereby is as follows: The tiles 23 forming the flues are arranged in a tier and extend horizontally as shown. in Figs. 2,3, and 4 and are joined together by suitable tile or brick work as in-' dicated by the numeral 24-forming on each side thereof air passages 25 and 2 6. I These air passages 25 and 26 are divided into ports 27 and separated from each other by the elongated division tiles 28; these ports into which the air passages are div ded-are clearly shown in' the sectional view, Fig. 4; the air is admitted through the openings 29 and 30 located in the frontand at the base of the structure and is permitted to pass upwardly through the passages 31 and 32 to'the top or cover 33; from these passages the air passes downwardlythrough the ports 27 in a direction indicated by the arrows (see Fig. 4) and the circulation,from each of the passages 31 and 32 is separated by excessively heated by its circulation around the flue tiles and mixed with the products of combustion in the combustion chamber utilizes all of the heat products and permits the heat to pass upwardly contacting with the several gas retorts 39.

Over the chamber 37 is located a plurality of tiles 4O spaced at intervals apart forming direct passage-ways ll (see Fig. and direct communication from the chamber 37 to the passage 42 is prevented by a solid wall of tiles 4:3, the construction of which is clearly shown in detail in Fig. 9; this structure of tile serving as a deflector as well as support for the lowest row of retorts. These tiles are supported on blocks a4 shown in detail in Fig. 8 having a flared depression 45 which forms the upper portion of the inlets 38; these blocks in turn are supported on tiles 46 shown in detail in Fig. 6 and each of these blocks is recessed as indicated by the numeral l? which communicates with the depression .45 completing the series of passage ways 38; the several tiles are keyed together by the wedged tiles @8, their ends supported in the recess e9. The edges of the tiles 46 are tongued and grooved as shown so that when the tiles are laid they form a complete leak proof partition. Back of this series of tiles is the chamber 4C2 through which the heat after having vcontacted with the several retorts passes on'its way out toward the stack; this chamber has communication with the passages 50 and 51,the heat a passing downwardly through both-of these passages in a direction as indicated by the arrows (see Fig. '2) passing alternately from one of the fines formed by the flue tiles 23 to the other until it reaches the bottom-most flue then it passes out into the fines 52 and is led to the stack 53. On the top of the passages 50 and 51 are located dampers 54; which can be manipulated by inserting an /instrument through the opening 55 after first removing the plugs 56, and by the regulation of these dampers the temperature in the upper portion of the structure around the retorts can be governed and controlled. In addition to the dampers 54 I provide a damper 57 which is located in the passage between the two lower fines and by which the draft from the stack is regulated.

The essential feature of my invention is the-formation of the passages and fiues lo cated at the right and at the left of the me box or heating'apartment, the air entering at the base of the structure passing upwardly through passageways, then downwardly on t 1e same side contacting with the sides of the fines then passing underneath and up through ports on the opposite side again contacting with the heated fiues and finding outlet into the combustion chamber;

this air when mixed with the products of combustion creating. an excessive heat and then contacting with the several gas retorts is deflected downwardly and permitted to pass out through the fines excessively heating the air passing around the same.

The products of'combustion which; pass =through the center row'of nostrils 58 located through which the air permitted to pass up, then down, then under and up, around the fines permitting'the air to be excessively heated andports through which said air is passed to be mixed with the products of com bustion, substantially as specified.

A gas generator comprising a structure,

a fire box mounted therein, retorts located above the fire box, a tier of fiues located in the structure to the right and left ofthe fire box and located horizontally, a plurality of air passages formed in the structure on both sides of the fines, passages for admitting the air from the base of the structure passing upwardly then downwardly on one side, then under and up on the other side and fed through a plurality of passages to intermingle with the products of combustion discharged from the fire box, combustion chambers for receiving the mixture of air and products of combustion and passages for permitting the unused heat to pass out by way of the fines primarily and excessively heating the air circulating around the same,

substantially as specified.

In testimony whereof, I have sign 6. name to this specificatioriyin presence if subscribing witnesses.

WILLIAM '0. LOUDON'.

i Witnesses:

i ALFRED A; EIGKS,

\VAnTEn GSTEIN.

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